SpookyJam 2021

Welcome to SpookyJam! This is MMD's annual fall celebration for the modded Minecraft community. During October we host a mod jam where members of the community are encouraged to create new mods that fit the seasonal vibe. Participants are encouraged to collaborate, explore new skills, and challenge themselves. During SpookyJam we also host a public Minecraft server where anyone can join and check out the valid mod jam submissions.

Event Timetable

SpookyJam 2021 begins! Participants can start working on their projects and finished projects can be submitted.
The SpookyJam ModPack and Public server go live. Participants are encouraged to submit alpha builds before this date.
The submission window will be closed. New submissions will not be accepted.
The winners of the competitive modjam will be announced.
The public server will go offline and a backup of the save file will be made available for download.


  1. Submissions must only be developed from October 1st to October 31st UTC. You may come up with ideas and plan your project in advance, but all code, assets, textures, sounds, and models must be made during the specified time.
  2. Submissions should fit with the broader themes of SpookyJam. These themes include anything that is spooky, dark, or mysterious. Anything that fits with the autumn/fall season is also included.
  3. Submissions must load on clients and dedicated servers without crashing the game. Targeting only one of these environments is fine as long as loading in an unsupported environment does not crash the game or cause the game to be unplayable.
  4. Submissions must be compatible with Minecraft 1.17.1 and either Forge or Fabric.
  5. Third party dependencies such as libraries, frameworks, APIs, and other mods are allowed. Your project will be accountable for any issues caused by your dependencies. You are also required to disclose all required dependencies when submitting your project through our form.
  6. Teams are allowed. There are no limits to the size of a team, and participants may contribute to multiple teams. If a team submission wins a prize, the team is responsible for deciding how that prize will be shared amongst its members.
  7. Submissions from MMD team members or those who are employed by event sponsors are not eligible to win prizes during this event. Submissions from teams that they are a part of will also not be eligible for winning prizes.
  8. Submissions must not contain malicious code or act in bad faith. For example, crashing the game, making the game unplayable, or tampering with other submissions are not allowed.
  9. Submissions must be uploaded to CurseForge before the submission deadline. They must also pass CurseForge's standard project review. Participants are encouraged to upload their projects as soon as possible, as this review process can take some time to complete.

Rewards and Prizes

There will be twelve cash prizes awarded to eligible submissions. The winners will be determined by a panel of judges composed of MMD team members and event sponsors. This event is sponsored by CurseForge who has provided the prize pool for this event.

Top 3 Submissions

The top three Forge submissions and the top three Fabric submissions will be awarded the following prizes. Submissions that are compatible with both loaders will be considered for both categories however they may only win one category.

  1. 1st Place - $200 USD
  2. 2nd Place - $100 USD
  3. 3rd Place - $50 USD

Bonus Prizes

In addition to the prizes for top 3 submissions there are six $50 USD bonus prizes. These prizes are awarded based on specific criteria and may be awarded to any eligible submission including one that received a top 3 prize.

  1. Originality - Awarded to the most fresh and original submission.
  2. Utility - Awarded to the submission that is the most useful in a wide variety of circumstances.
  3. Aesthetic - Awarded to the submission that looks the best visually.
  4. Creepy - Awarded to the creepiest submission.
  5. Integration (Existing) - Awarded to the submission with the best integration with existing mods.
  6. Integration (SpookyJam) - Awarded to the submission with the best integration with other SpookyJam entries.

Frequently Asked Questions

Can I submit multiple mods to this event?

Yes, you may create and submit multiple submissions to this event. If you are interested in doing this please take care of yourself and take steps to avoid stress and burnout.

Can I join multiple teams?

Yes, you may join and contribute to multiple teams. If you are interested in doing this we recommend being transparent with all of your team mates about other teams you are contributing to.

Can I submit the same mod for both Forge and Fabric?

Yes, you may support both Forge and Fabric with your submission. These submissions will be eligible for the Top 3 Forge and Top 3 Fabric categories but may only place in one of those categories. Please be advised that supporting both loaders is completely optional. Doing so will require additional effort and may be stressful. If you're still interested in doing this we recommend checking out the useful MultiLoader-Template.

I am not a mod author, how can I participate?

Everyone is welcome to participate in SpookyJam. One of the easiest ways to join in is by giving participants feedback and encouragement or play with the mods on the public event Minecraft server. If you're looking to get more involved with the event you may be able to help with translating submissions, helping with textures, or contributing in other ways. SpookyJam is also a great opportunity to learn more about mod development and try to make your own mod.

Can I submit a mod from previous SpookyJam events?

Yes, previous year entries that have been updated can be resubmitted. These entries will not be eligible for prizes and will not receive the same level of promotion that new submissions receive however they may be included on our Modpack and public server.

Do Pull Requests count as being a team member?

Creating a Pull Request does not inherently make you a member of that team. The team list is ultimately up to that team and the member who is submitting their submission. The main time event organizers will step in is when the Pull Request System is being abused to bypass event rules.

Would accepting a Pull Request from an ineligible person make my project ineligible for prizes?

Accepting minor Pull Requests from an ineligible person is fine. A minor Pull Request in this context would be along the lines of fixing a typo, resource optimization, or localizing the mod to another language.

Does the mod need to be published on CurseForge?

We are only accepting mods that have been published to CurseForge. Having this requirement allows us to streamline the process of publishing the modpack and having players connect to our servers.

Can I submit a mod that I did not create?

No. Only the authors of a project may submit it to SpookyJam.

How should teams submit their project?

Teams should select one team member to submit their project. Submitting the same project multiple times is not needed.

Do I need to submit my project?

Yes you must submit your project before the end of the event. You can submit your project here.




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